I have two parks in that area. There is Sheep's Green and Lammas Land Park and Wandlebury Country Park. Both offer free entrance.
Can I get the post code for Lammas Land Park?
attraction-area attraction-name attraction-type hotel-internet hotel-name hotel-stars
attraction-area attraction-name attraction-type hotel-internet hotel-name hotel-stars
attraction-area attraction-name attraction-type hotel-internet hotel-name hotel-stars
attraction-area attraction-name attraction-type hotel-internet hotel-name hotel-stars